The muscle that partitions the neck into two clinically important triangles is the
A. pectoralis major.
B. trapezius.
C. sternocleidomastoid.
D. external oblique.
E. occipitalis.
Answer: C
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When muscles contract, they shorten. Therefore, the movement that muscles can make is to pull the insertion toward the origin.
Answer the following statement true (T) or false (F)
In Kearns-Sayre syndrome, tissues that rely on aerobic respiration are most heavily affected. Defects in which organelles do you think cause this disease?
A. Mitochondria B. Peroxisomes C. Ribosomes D. Nucleoli
The endotracheal tube _____________ must be deflated prior to extubation
Fill in the blank(s) with correct word
Erection and ejaculation can be initiated by
A. impulses from the cerebellum. B. increased levels of LH and FSH. C. contraction of smooth muscle. D. increased blood levels of testosterone. E. manual stimulation of the penis.